Ink jet printing machine

An ink jet printing machine, including:

• an array of nozzles;
• a plurality of housings for storing a supply of writing fluid for each nozzle of said array of nozzles, each of said plurality of housings having a channel therein in communication with one of the nozzles of said array of nozzles;
• a plurality of transducers, each of said transducers being positioned closely adjacent to the channel in one of said plurality of housings so that activation of said transducer ejects droplets of writing fluid from the nozzle in communication with the channel adjacent said transducer;
• and
• two corrugated members interposed between adjacent housings of said plurality of housings for isolating each of said array of nozzles from one another to prevent interaction between said array of nozzles from energizing nozzles other than the selected nozzles of said array of nozzles wherein the apexes of the intersecting walls of one of said corrugated members engage the apexes of intersecting walls of an adjacent corrugated member.